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efficient in doing is the most popular phrase on the web.

efficient at doing 149,100 results on the web	efficient in doing 1369,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
and being efficient Simplification is also needed in the monitoring of how funds are used, and outside audits seem to me to be the most efficient way of doing this. And you've been very efficient doing the jobs I've asked you to do. doing things well whether or not they're important. The only efficient way of doing this is through common action. doing the right things This is a field where subsidiarity means that this matter must compulsorily be dealt with at European level which is the only efficient way of doing so. This is the difference between being effective	And you've been very efficient doing the jobs I've asked you to do. The only efficient way of doing this is through common action. This is the difference between being effective doing the right things This is a field where subsidiarity means that this matter must compulsorily be dealt with at European level which is the only efficient way of doing so. Simplification is also needed in the monitoring of how funds are used, and outside audits seem to me to be the most efficient way of doing this. and being efficient doing things well whether or not they're important.

efficient at doing

149,100 results on the web

efficient in doing

1369,000 results on the web

More popular!

and being efficient
Simplification is also needed in the monitoring of how funds are used, and outside audits seem to me to be the most efficient way of doing this.
And you've been very efficient doing the jobs I've asked you to do.
doing things well whether or not they're important.
The only efficient way of doing this is through common action.
doing the right things
This is a field where subsidiarity means that this matter must compulsorily be dealt with at European level which is the only efficient way of doing so.
This is the difference between being effective

And you've been very efficient doing the jobs I've asked you to do.
The only efficient way of doing this is through common action.
This is the difference between being effective
doing the right things
This is a field where subsidiarity means that this matter must compulsorily be dealt with at European level which is the only efficient way of doing so.
Simplification is also needed in the monitoring of how funds are used, and outside audits seem to me to be the most efficient way of doing this.
and being efficient
doing things well whether or not they're important.